Scraper for printing-rollers.



.I. KAISER.

SCRAPER FOR PRINTING ROLLERS.

APPLICATION FILED IAN.2I.19I6..

1,21,97i Patented Oct. 17, 1916.

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JACOB KAISER, OF BROOKLYN, NEW YORK.

SORAPER FOR PRINTING-ROLLERS.

Specification of Letters Patent.

Patented Oct. 17, 1916.

Application filed January 21, 1916. Serial No. 73,451.

To all whom it may concern:

Be it known that I, JACOB Karsnn, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Scrapers forPrinting-Rollers; and I do hereby declare the following t'o'be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to scrapers and more particularly to a detachabletype which may be inserted in a press to contact with the periphery ofany one of the set of.distributing rollers.

It has for an object to provide a simplified form of scraper whichcollects the ink from the distributing roller and through its contactwith the inking roller, the ink from the inking roller, and to deliverthe collected ink to any suitable receptacle.

A further object of this invention is the provision of a scraper tocoact with a cleaning liquid such as an oil for removing ink from thesurface of printing rollers.

Further objects will be apparent from the.

following specification, appended claims and drawings in which- Figure 1is a side elevation of parts of a printing press showing the scraperapplied thereto, Fig. 2 is an end elevation of a scraper contacting witha distributing roller, Fig. 3 is a rear elevation of the scraper, Fig. 4is a plan view of one end of the supporting means of the scraper, andFig. 5 is.

a front elevation of the scraper.

This device will be made in different sizes to satisfy the requirementsfor different sized presses,-but in each instance the principle willremain the same in having a strip of flexible material bent to form anangular extension which may be sharpened to present a scraping surface.This strip of metal has its lower edge rolled to form a gutter to directthe ink and oil collected by the scraping edge to any desired receptacleand this strip of metal is supported by a bar which may be detachablycarried by parts of a printing press as well as having said bar mountedupon trunnions to permit the contact of the scraping edge to be variedas desired with the surface of the distributing roller. 7

Referring to the drawings, there is shown a frame 10 having the inkingrollers 11 journaled therein, and having the distributing rollers 12contacting with said inking roller. One of the rollers 12 of each sethas its periphery disposed to contact with a scraper comprising a stripof flexible and resilient metal bent to form a body portion 13 fromwhich an extension 14: is formed and this extension has its edgesharpened as at 15 to present a scraping edge. The lower edge of thissheet of metal or other desired material'is rolled as at 16 to forma'gutter and this gutter is inclined from 'one edge of the scraper tothe other to permit the lower end of said gutter to discharge the inkand oil into any desired receptacle.

The scraper is carried by a bar 17 which runs across the back of thescraper at any .desired elevation and this bar extends slightly beyondthe edges of the scraper. The extensions of said bar receive fittings l8and these fittings comprise hooks 19 for engagement over trunnions 20which may be secured to the frame of the press. The fittings 18 may bescrewed or otherwise secured to the bar 17 as at 22.v One fitting 18also has a trunnion 23 formed thereon about which a band 24 carried by ahandle 25 fits. The handle 25 may be slotted as at 26 and also providedwith a screw 27 to permit said handle being adjustable on the trunnion23. This is necessary because the scraper will not always be positionedin the vertical line as shown in Fig. 2 of the drawing, but may have tobe inclined to meet the several requirements. The handle 25 enables anoperator to impart the desired frictional contact between the scrapingedge 15 and the roller 12.

When it is desired to clean the inking rollers of a press, the scraperwill be inserted in the frame and mounted upon the trunnions 20, afterwhich the press may be run as in ordinary usage and a cleaning oilcommonly used by printers added to the inking rollers. After the presshas been run for a while, the distributing roller 12 with which thescraper 13 contacts will collect all the ink and deliverthe same to thegutter 16 from where it will be discharged to the desired receptacle.

It is thought that the operation of this device will be clear to thoseskilled in the art and that it is applicable to almost any type ofpress, as well as being capable of many modifications without departingfrom the general spirit of construction and usage.

Copies of this patent may be obtained for Having thus described thisinvention, I claim 1. A scraper of the class described comprising astrip of material, one edge of said strip of material being bent to forma lateral extension, the extreme edge of said extension being sharpened,the opposite edge of said strip of material being diagonally rolled toform an inclined gutter, a supporting bar for said scraper, trunnions tosupport said supporting bar and a handle carried by said supporting barto control the frictional contact, of said scraping edge With a movingsurface.

2. A scraper of the class described comprising a strip of resilientmaterial, a lateral extension formed therefrom, a scraping edge formedon said extension, the lower edge of said strip of material being rolleddiagonally to form aninclined gutter, a supporting bar for said strip ofmaterial, fittings secured to said supporting bar, said fittings havinghooks extending therefrom to engage trunnions carried by a printingpress, a trunnion carried by one of said fittings and a handleadjustably carried by the trunnion on said fitting.

In testimony whereof I aflix my signature.

JACOB KAISER.

five cents, each, by addressing the Commissioner of Patents, Washington,D. G.

